Characterization of a multianode photomultiplier tube for use with scintillating fibers to detect gamma rays
نویسنده
چکیده
The performance of a multianode photomultiplier tube (MAPMT) with 64 anodes coupled to scintillating fibers has been examined. Such a detector system can be used in a pairproduction gamma-ray telescope as well as in other applications. The characteristics of these tubes (Hamamatsu R5900-00-M64) are presented including single photoelectron sensitivity, electrical and optical cross-talk, and dark count. Environmental test results of these devices are also presented.
منابع مشابه
An operative gamma camera for sentinel lymph node procedure in case of breast cancer
Large field of view gamma cameras are widely used to perform lymphoscintigraphy in the sentinel lymph nodes (SLN) procedure in case of breast cancer. However, they are not specified for this application and their sizes do not enable their use in the operative room to control the excision of the all SLN. We present the results obtained with a prototype of a new mini gamma camera developed especi...
متن کاملX-Ray Detection with a Scintillating YAP-Window Hybrid Photomultiplier Tube
A YAP(YAlO3 : Ce)-scintillating window, coated on its inner surface with an S20-photocathode, seals a cross-focusing hybrid photomultiplier tube (HPMT) equipped with a small p-i-n anode of 2-mm diameter. This new radiation detector separates X-ray lines down to about 2-keV peak energy from the HPMT noise. Its detection efficiency for high gamma energies depends on the YAP-window thickness and a...
متن کاملCharacterization of a scintillating GEM detector with low energy x-rays.
A two-dimensional position-sensitive dosimetry system based on a scintillating gas detector is being developed with the aim of using it for pre-treatment verification of dose distributions in charged particle therapy. The dosimetry system consists of a chamber filled with an Ar/CF(4) scintillating gas mixture, inside which two cascaded gas electron multipliers (GEMs) are mounted. A GEM is a thi...
متن کاملCalibration Techniques for VERITAS
VERITAS is an array of four identical telescopes designed for detecting and measuring astrophysical gamma rays with energies in excess of 100 GeV. Each telescope uses a 12 m diameter reflector to collect Cherenkov light from air showers initiated by incident gamma rays and direct it onto a ‘camera’ comprising 499 photomultiplier tubes read out by flash ADCs. We describe here calibration methods...
متن کاملGamma Ray Imaging of Small Animals Using Position-Sensitive Photomultiplier Tubes
This thesis is an interdisciplinary investigation of small animals consisting of two parts. First, a comparison of NaI(Tl) and CsI(Tl) pixilated scintillating crystals will be presented based on results of resolution tests performed using 5 " diameter Hamamatsu 5800 PSPMTs. Second, application of the gamma ray detectors will be assessed using a biological model. The biological model chosen to a...
متن کامل